* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif;
}

#ah {
    width: 87%;
    margin-left: 13%;
    padding: 20px;
    background-color: #36648B;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.6);
}

#ah img {
    float: right;
    width: 85px;
    height: 85px;
    object-fit: cover;
    border: 1px solid #7A8B8B;
    border-radius: 10px 10px 10px 10px;
    margin-left: 10px;
    margin-top: 0px;
    cursor: pointer;
}

#ah p {
    margin: 0;
    font-size: 30px;
    color: white;
    text-align: left;
}

.content {
    width: 80%;
    margin-left: 13%;
    margin-top: 0px;
    overflow: hidden;
    position: absolute;
    /*绝对定位*/
    right: 5%;
    /*距离页面右侧为5%*/
    top: 45%;
    /*距离页面顶部为50%*/
    transform: translateY(-50%);
    /*向上移动自身高度的50%，使得内容垂直居中*/
}

.content h1 {
    font-size: 40px;
    color: #36648B;
    padding: 10px;
}

.content p {
    font-size: 20px;
    color: #36648B;
    padding: 10px;
}

#myInput {
    /* 图片的URL */
    background-image: url("https://img2.baidu.com/it/u=1624800972,419118123&fm=253&fmt=auto&app=138&f=JPEG?w=500&h=500");
    /*添加搜索按钮*/
    background-size: 21px 21px;
    /*图片大小*/
    background-repeat: no-repeat;
    /*图片不会重复*/
    background-position: 10px 12px;
    /*定位搜索按钮*/
    width: 100%;
    /*全屏幕显示*/
    font-size: 16px;
    /*字体大小*/
    padding: 12px 20px 12px 40px;
    /*设置内变距*/
    border: 1px solid #ddd;
    margin: bottom 12px;
    /*添加顶部的外边框*/
}

#myTable {
    border-collapse: collapse;
    /*边框折叠*/
    width: 100%;
    /*全屏幕显示*/
    border: 1px solid #ddd;
    font-size: 12px;
}

#myTable th,
#myTable td {
    text-align: left;
    /*左对齐*/
    padding: 12px;
    /*设置内边框*/
}

#myTable tr {
    border-bottom: 1px solid #ddd;
    /*添加底部边框*/
}

#myTable tr.header,
#myTable tr:hover {
    background-color: #f1f1f1;
}

.content img {
    max-width: 100%;
    max-height: 100%;
    display: block;
    margin: auto;
}

.aone {
    text-decoration: none;
}

.aone:hover {
    color: #55555555;
}

.switch {
    display: inline-block;
    position: relative;
}

.switch input[type="checkbox"] {
    display: none;
}

.switch label {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 25px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.switch label::before {
    content: "";
    position: absolute;
    top: 1px;
    left: 1px;
    width: 23px;
    height: 23px;
    background-color: #e9e9e9;
    border-radius: 50%;
    transition: background-color 0.3s;
}

.switch input[type="checkbox"]:checked+label {
    background-color: #30d158;
}

.switch input[type="checkbox"]:checked+label::before {
    transform: translate(25px);
}

a {
    text-decoration: none;
    /*取消超链接的下划线*/
}

#modal {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

#modal input[type="text"] {
    width: 200px;
    margin-bottom: 10px;
}

#modal button {
    padding: 5px 10px;
    background-color: #30d158;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

#ta {
    margin: auto;
    text-align: center;
}

#ta tr {
    height: 35px;
}

.munu {
    display: flex;
    /*使用弹性盒模型*/
    flex-direction: column;
    /*子项垂直排列*/
    justify-content: space-between;
    /*项目之间留出空间*/
    width: 13%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.6);
    background-color: #36648B;
}

.munu ul {
    display: flex;
    flex-direction: column;
    height: 100%;
}

li {
    list-style: none;
}

#munuName {
    width: 100%;
    padding: 20px 50px;
    /*与菜单栏的padding保持一致*/
    background-color: #36648B;
    color: #fff;
    border: none;
    /*无边框*/
    text-align: center;
    /*文字居中*/
    font-size: 30px;
    box-sizing: border-box;
    /*包括padding在内的宽度计算*/
}

.munu li ol {
    /* display: none;    默认隐藏子菜单 */
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-in-out;
}

.munu li input:checked~ol {
    /*当checkbox被勾选时，显示子菜单*/
    /* display: block; */
    max-height: 500px;
}

.munu li {
    width: 100%;
    border: 1px solid #363636;
    /*为每一项添加黑色边框*/
    margin-bottom: -1px;
    /*减小底部外边框，以消除边框重叠*/
}

.munu li input {
    display: none;
}

.munu li label {
    position: relative;
    display: block;
    width: 100%;
    padding: 20px 50px;
    color: #fff;
    background-color: #36648B;
    cursor: pointer;
}

.munu li label i {
    position: absolute;
    top: calc(50% - 12px);
    left: 20px;
    font-size: 24px;
    transition: all 0.5s;
}

.munu li label :hover {
    background-color: #6CA6CD;
}

.munu li:not(:first-child) label {
    border-top: 1px solid #104E8B;
}

.munu li ol {
    width: 100%;
    background-color: #36648B;
}

.munu li ol li {
    position: relative;
    width: 100%;
    height: 0;
    line-height: 50px;
    padding-left: 20px;
    color: #fff;
    cursor: pointer;
    transition: all 0.5s;
}

.munu li ol li:active {
    color: #36648B;
    background-color: #fff;
    transition: all 0.1s;
}

.munu li ol li:hover::before {
    transform: scaleY(1);
}

.munu li input:checked~label li {
    transform: rotate(90deg);
}

.munu li input:checked~ol li {
    height: 50px;
}

.controlArea {
    width: 80%;
    margin: 0 auto;
    position: relative;
    right: 0px;
    top: 20px;
    background-color: #fff;
    padding: 20px;
    font-size: 20px;
    box-sizing: border-box;
    display: none;
}

.controlArea button {
    width: 100px;
    height: 50px;
    line-height: 30px;
    /*行高，使文字垂直居中*/
    margin: 5px;
    /*按钮之间的间距*/
    border: 1px solid black;
    border-radius: 5px;
    color: #fff;
    background-color: #36648B;
    cursor: pointerinter;
}

.controlArea button :active {
    color: #36648B;
    background-color: #fff;
}

.controlArea button:hover {
    font-weight: bold;
    cursor: pointer;
    color: #36648B;
    ;
    background-color: #fff;
}

.controlAreaButton {
    display: flex;
    justify-content: center;
    align-items: center;
}

#return {
    /* 居中但不固定 */
    position: absolute;
    /* margin: 0 auto; */
    width: 100px;
    height: 50px;
    color: #fff;
    background-color: #36648B;
    cursor: pointer;
    box-shadow: 0 0 10px #36648B;
    border-radius: 5px;
    font-size: 18px;
    /* 位置固定到最下面 */
    bottom: 0px;
}

#return:hover {
    font-weight: bold;
    cursor: pointer;
    color: #36648B;
    ;
    background-color: #fff;
}

#welcomeContent {
    font-size: 15px;
    color: #fff;
    float: right;
    margin-top: 0;
}